Using a Wattwatchers allows you to use Charge HQ with all makes of rooftop solar when combined with a compatible EV or Wall Charger.
It is commonly used to provide solar & grid monitoring for users who either a) have solar inverters not directly supported by Charge HQ, or b) would like to add grid monitoring to their existing solar system.
All Wattwatchers energy meters are compatible with Charge HQ. The energy meters are broadly compatible with all makes and models of rooftop solar.
Models 6M (mobile connectivity) & 6W (WiFi connectivity) are most commonly used for residential applications. Each can monitor up to 6 circuits.
For single phase homes this covers solar, grid and up to 4 additional appliances. For three phase homes it covers both solar and grid monitoring only.
Wattwatchers energy monitors are sold in Australia and New Zealand.
Installation must be completed by a licensed electrician.
Contact Wattwatchers directly for supply & installation enquiries.
Wattwatchers devices are flexible and can be installed in different ways, in particular they can monitor different circuits and supplies. In all cases, Charge HQ only uses data from CTs (a.k.a. channels) which are monitoring solar generation, grid connection and batteries. Charge HQ will ignore all other circuits.
Charge HQ supports the following configurations:
Solar and Grid
- 1 or more CTs installed on solar inverter output(s)
- 1 or more CTs installed on grid connection(s)
This is the most common configuration and enables all features in Charge HQ. If you have a home battery, please see the notes below.
If you have a second, unmonitored solar inverter, Charge HQ will still work. Please enable the Negative Consumption setting in this case, although Charge HQ should enable this for you after a while.
Solar Only
1 or more CTs installed on solar inverter output(s)
Grid connection not monitored
In this configuration, Charge HQ can track solar generation only.
If you have a second, unmonitored solar inverter, Charge HQ can only track the generation of the monitored inverter(s).
Grid Only
- 1 or more CTs installed on grid connection(s)
- Solar inverter not monitored
In this configuration, Charge HQ can track excess solar, although some minor features are not available. When using this configuration, you should enable the Negative Consumption setting, although Charge HQ should enable this for you after a while.
AC-coupled Battery
If your system includes an AC-coupled battery and this battery is monitored by a CT, some of Charge HQ's battery features will work. Please let us know if you have such a setup.
DC-coupled Battery
Charge HQ will have limited functionality with a DC-coupled battery and Wattwatchers, because it can't see what the battery is doing. The home battery will usually charge before the EV, although this may reverse at times.
